Home / 123,831.18-170,887.05-67,242.57

Finding the Fourth Proportional to 123,831.18, 170,887.05 and 67,242.57

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Solution

The fourth proportional to 123,831.18, 170,887.05 and 67,242.57 is: 92,794.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,831.18 : 170,887.05 = 67,242.57 : x
  2. Step 2: Convert to fraction form
    123,831.18/170,887.05 = 67,242.57/x
  3. Step 3: Cross multiply
    123,831.18x = 170,887.05 × 67,242.57
  4. Step 4: Simplify right side
    123,831.18x = 11,490,884,421.72
  5. Step 5: Solve for x
    x = 11,490,884,421.72/123,831.18
  6. Step 6: Final answer
    x = 92,794.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.